Ahrenholz, Jeffrey M wrote: Hi,
We have discussed using 127.0.0.0 for LSIs, say 127.100.0.0/16, but will that really work?in the OpenHIP software we have a macro IN_LOOP() to check if an IPv4address is equal to (INADDR_LOOPBACK >> IN_CLASSA_NSHIFT), i.e. if the top bits equal 127(see /usr/include/netinet/in.h on Linux) I wonder if other applications use similar techniques to check for loopback addresses? Using 127.100.0.0/16 would be problematic in that case.
many apps probably (?) just check 127.0.0.0/8 which could be a big problem for HIP. I would prefer getting a slot from 1.0.0.0/x address space to avoid such problems. We have been experimenting with the 1.0.0.0/x address space without any problems.